Extracted text: W Math 2250 Unit 4 Post Test Re X b Statistics Question | bartleby x + -> webassign.net/web/Student/Assignment-Responses/last?dep=24515412 What are the degrees of freedom? df N dfp What assumptions are you making about the original distribution? O The populations follow independent normal distributions. The populations follow independent chi-square distributions. We have random samples from each population. The populations follow independent normal distributions. We have random samples from each population. The populations follow dependent normal distributions. We have random samples from each population. (c) Find or estimate the P-value of the sample test statistic. (Round your answer to four decimal places.) O p-value > 0.100 0.050 < p-value="">< 0.100="" 0.025="">< p-value="">< 0.050="" 0.010="">< p-value="">< 0.025="" 0.001="">< p-value="">< 0.010="" o="" p-value="">< 0.001="" (d)="" based="" on="" your="" answers="" in="" parts="" (a)="" to="" (c),="" will="" you="" reject="" or="" fail="" to="" reject="" the="" null="" hypothesis?="" at="" the="" a="0.05" level,="" we="" fail="" to="" reject="" the="" null="" hypothesis="" and="" conclude="" the="" data="" are="" statistically="" significant.="" at="" the="" a="0.05" level,="" we="" reject="" the="" null="" hypothesis="" and="" conclude="" the="" data="" are="" statistically="" significant.="" at="" the="" a="0.05" level,="" we="" reject="" the="" null="" hypothesis="" and="" conclude="" the="" data="" are="" not="" statistically="" significant.="" at="" the="" a="0.05" level,="" we="" fail="" to="" reject="" the="" null="" hypothesis="" and="" conclude="" the="" data="" are="" not="" statistically="" significant.="" (e)="" interpret="" your="" conclusion="" in="" the="" context="" of="" the="" application.="" o="" fail="" to="" reject="" the="" null="" hypothesis,="" there="" is="" sufficient="" evidence="" that="" the="" population="" variance="" is="" larger="" in="" the="" old="" thermostat="" temperature="" readings.="" reject="" the="" null="" hypothesis,="" there="" is="" sufficient="" evidence="" that="" the="" population="" variance="" is="" larger="" in="" the="" old="" thermostat="" temperature="" readings.="" fail="" to="" reject="" the="" null="" hypothesis,="" there="" is="" insufficient="" evidence="" that="" the="" population="" variance="" is="" larger="" in="" the="" old="" thermostat="" temperature="" readings.="" ject="" the="" null="" hyp="" esis,="" there="" is="" insufficient="" evidence="" that="" the="" population="" variance="" is="" larger="" in="" the="" old="" thermostat="" temperature="">
Extracted text: W Math 2250 Unit 4 Post Test Re X b Statistics Question | bartleby -> webassign.net/web/Student/Assignment-Responses/last?dep=24515412 A new thermostat has been engineered for the frozen food cases in large supermarkets. Both the old and new thermostats hold temperatures at an average of 25°F. However, it is hoped that the new thermostat might be more dependable in the sense that it will hold temperatures closer to 25°F. One frozen food case was equipped with the new thermostat, and a random sample of 26 temperature readings gave a sample variance of 4.2. Another similar frozen food case was equipped with the old thermostat, and a random sample of 16 temperature readings gave a sample variance of 12.6. Test the claim that the population variance of the old thermostat temperature readings is larger than that for the new thermostat. Use a 5% level of significance. How could your test conclusion relate to the question regarding the dependability of the temperature readings? (Let population 1 refer to data from the old thermostat.) (a) What is the level of significance? State the null and alternate hypotheses. O Ho: 01 - 02`; H,: 0. 2 2 > 02 %D Ho: 0,2 = 0,2; H,: 0,? < 0,²="" %3d="" 2="" 2="" ho:0,="02';" h:="" 0,²="" +="" 02²="" o="" hoi="" o;?=""> 0;²; H;: 0,² = 0,? 2 2 Ho: 0; > 0,; H,: 01 (b) Find the value of the sample F statistic. (Round your answer to two decimal places.) What are the degrees of freedom? df, df, = What assumptions are you making about the original distribution? The populations follow independent normal distributions. The populations follow independent chi-square distributions. We have random samples from each population. The populations follow independent normal distributions. We have random samples from each population. The populations follow dependent normal distributions. We have random samples from each population. (c) Find or estimate the P-value of the sample test statistic. (Round your answer to four decimal places.) p-value > 0.100 0.050 < p-value="">< 0.100="" 0.025="">< p-value="">< 0.050="" 0.010="">< p-value="">< 0.025="" 0.001="">< p-value="">< 0.010>